Naslov
Environmental exposure to PFASs from air and water emissions of outdoor jackets

Autori
Inge van Driezum, Tobias Frömel, Martina Periša, Thomas P. Knepper

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
4th International Workshop Per- and Polyfluorinated Alkyl Substances- PFASs / - , 2012, 42-42

Skup
4th International Workshop Per- and Polyfluorinated Alkyl Substances- PFASs

Mjesto i datum
Idstein, Njemačka, 07.11.2012. - 09.11.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
polyfluorinated compounds; outdoor jackets; HPLC-MS/MS

Sažetak
PFASs have been shown to be present in human blood samples and different environmental matrices. This has instigated a considerate scientific and governmental interest in potential routes of human exposure. The PFC-EXPO project determines the risk of exposure to PFASs from outdoor jackets for humans and the environment. Previous studies showed the presence of PFAAs and FTOHs in textile samples (Norin & Schulze, 2006 ; Herzke, Ollson, & Posner, 2012). FTOHs have a high volatility and vapor pressure and have been detected in outdoor, office, and indoor air (Jahnke, Huber, Temme, Kylin, & Berger, 2007 ; Shoeib, Harner, Webster, & Lee, 2011 ; Martin, et al., 2002). In this study, the emission of FTOHs from outdoor jackets during wearing and storage and during washing was simulated. The amount of PFASs present in impregnating agents was also measured. This data, together with jacket import and export data from Germany, was then used to estimate the total emission of PFASs in the environment as a result of wearing, washing, and impregnating of jackets. A flow-through system was designed to simulate PFAS emissions (especially fluorotelomer alcohols) from wearing and storage. The jackets used in this system had a different size, depending on previously measured concentrations collected at HS-Fresenius. The air samples were analyzed using HPLC-MS/MS with the electrospray ionization (ESI) source operated in negative-ion mode. All experiments were performed in duplicate and a blank was run simultaneously to measure the background concentrations. Washing experiments were performed with four different jackets. The washing water was extracted and afterwards analyzed using HPLC-MS/MS with ESI source operated in negative-ion mode. The washing water was extracted in triplicate and washing water without detergents and jackets being washed was used as a background sample. PFAS concentrations in impregnating agents were determined by diluting the mixtures. Both the neutral and basic compounds and the acidic compounds were analyzed using HPLC-MS/MS with ESI source operated in negative-ion mode. Sample preparation was done in duplicate. A mixture of MilliQ water and methanol or solely methanol was used as a blank sample. All measured air and washing water concentrations were compared with quantitative measurements of the concentration of PFASs in the outdoor jackets, in order to calculate the percentage of FTOHs emitted to the air and the percentage of PFASs emitted to washing water. The extra environmental load (both air and water) caused by DWR jackets will be presented.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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